{"id":237,"date":"2009-04-19T14:08:59","date_gmt":"2009-04-19T06:08:59","guid":{"rendered":"http:\/\/learn-house.idv.tw\/?p=237"},"modified":"2009-10-18T02:35:13","modified_gmt":"2009-10-17T18:35:13","slug":"psnr-peak-signal-to-noise-ratio","status":"publish","type":"post","link":"https:\/\/learn-house.idv.tw\/?p=237","title":{"rendered":"PSNR (Peak Signal to Noise Ratio)"},"content":{"rendered":"<p>\u901a\u5e38\u5728\u7d93\u904e\u5f71\u50cf\u58d3\u7e2e\u4e4b\u5f8c\uff0c\u8f38\u51fa\u7684\u5f71\u50cf\u901a\u5e38\u90fd\u6703\u6709\u67d0\u7a2e\u7a0b\ufa01\u8207\u539f\u59cb\u5f71\u50cf\uf967\u4e00\u6a23\u3002<br \/>\u70ba\uf9ba\u8861\uf97e\u7d93\u904e\u8655\uf9e4\u5f8c\u7684\u5f71\u50cf\u54c1\u8cea\uff0c\u6211\u5011\u901a\u5e38\u6703\uf96b\u8003PSNR \u503c\uf92d\u8a8d\u5b9a\u67d0\u500b\u8655\uf9e4\u7a0b\u5e8f\u5920\uf967\u5920\uf9a8\u4eba\u6eff\u610f\u3002<br \/>PSNR \u503c\u7684\u5b9a\u7fa9\u5982\u4e0b\uff1a<\/p>\n<p><a id=\"res_56\" href=\"http:\/\/learn-house.idv.tw\/gallery\/1\/psnr.PNG\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/learn-house.idv.tw\/gallery\/1\/previews-med\/psnr.PNG\" border=\"0\" width=\"220\" height=\"161\" \/><\/a> Peak \u5c31\u662f\u63078 bits \u8868\u793a\u6cd5\u7684\u6700\u5927\u503c255\u3002MSE \u6307 Mean Square Error\uff0cIn \u6307\u539f\u59cb\u5f71\u50cf\u7b2cn \u500bpixel \u503c\uff0cPn \u6307\u7d93\u8655\uf9e4\u5f8c\u7684\u5f71\u50cf\u7b2cn \u500bpixel \u503c\u3002PSNR \u7684\u55ae\u4f4d\u70badB\u3002\u6240\u4ee5PSNR \u503c\u8d8a\u5927\uff0c\u5c31\u4ee3\u8868\u5931\u771f\u8d8a\u5c11\u3002\u9019\u662f\u4e00\u500b\u5ba2\u89c0\u7684\u8a55\u6bd4\uf969\u64da\u3002\u4f46\u6709\u6642\u5019\u4e26\uf967\u80fd\u5b8c\u5168\u4ee3\u8868\u4eba\u7684\u4e3b\u89c0\u611f\u53d7\u3002<\/p>\n<p><strong><span style=\"color: #993300\">\u4f46PSNR\u4e00\u822c\u4f86\u8aaaPSNR\u70ba30\u5de6\u53f3\uff0c\u9019\u5169\u5f35\u5716\u5c31\u5f88\u63a5\u8fd1\u4e86\uff0cPSNR\u70ba40\u5de6\u53f3\uff0c\u8089\u773c\u5e7e\u4e4e\u770b\u4e0d\u51fa\u5dee\u7570\u4e86\uff0cPSNR\u523076\uff0c\u53ef\u4ee5\u8aaa\u662f\u5e7e\u4e4e\u4e00\u6a21\u4e00\u6a23\u4e86\u3002<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u901a\u5e38\u5728\u7d93\u904e\u5f71\u50cf\u58d3\u7e2e\u4e4b\u5f8c\uff0c\u8f38\u51fa\u7684\u5f71\u50cf\u901a\u5e38\u90fd\u6703\u6709\u67d0\u7a2e\u7a0b\ufa01\u8207\u539f\u59cb\u5f71\u50cf\uf967\u4e00\u6a23\u3002\u70ba\uf9ba\u8861\uf97e\u7d93\u904e\u8655\uf9e4\u5f8c\u7684\u5f71\u50cf\u54c1\u8cea\uff0c\u6211\u5011\u901a\u5e38\u6703 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-237","post","type-post","status-publish","format-standard","hentry","category-12"],"_links":{"self":[{"href":"https:\/\/learn-house.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/237"}],"collection":[{"href":"https:\/\/learn-house.idv.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/learn-house.idv.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/learn-house.idv.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/learn-house.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=237"}],"version-history":[{"count":0,"href":"https:\/\/learn-house.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/237\/revisions"}],"wp:attachment":[{"href":"https:\/\/learn-house.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/learn-house.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/learn-house.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}